Lowest Cost and Lowest Impact Uranium Mining

AMU is focused on defining economically viable ISR amenable uranium resources in Wyoming. ISR recovery is the lowest cost & least environmentally damaging form of uranium mining especially when an alkaline leach and ion exchange (IX) processes are utilised.

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ISR Mining

Low environmental impact ISR mining, also called In Situ Leach (ISL), uses an alkaline or acid “lixiviant“ solution*, injected & extracted using a series of wells (bore holes) to leach subterranean ores.

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After the lixiviant is injected, the uranium-bearing solution is pumped to the surface & recovered in a processing plant. Uranium pregnant solution from production wells is pumped or trucked to a treatment plant where uranium is recovered typically using resin/polymer ion exchange (IX) or solvent extraction (SX). Clean water is reinjected.

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Wyoming is the home of ISR uranium with experimental mining during the early 1960s & commercial mining starting in 1974. In 2019,of world uranium was mined by ISR methods with most US, Kazakhstan & Uzbekistan uranium mining now by ISR. South Australia has two ISR mines & a satellite ISR operation at Honeymoon and Beverley (Four Mile).

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